Ink distributor



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\ W. J. RAMSAIER INK DISTRIBUTR J. lanzsazrt ATTORNEY;

Patented Apr. 15, 1924.

narran stares rA'raNr ortica.

WILLIAM J'. RAMSAIER, O'F YORK, N. Y.

INK DISTRIBUTOR.

Application filed December 4, 1922.

To all iti/omit mc/1,1 concern.'

Be it known that l, VILLIAM J. RAMsAIER, a citizen of the United States, and resident of the borough of Manhattan, city, county, and Stat-e of New York, have invented certain new and useful Improvements in .lnk Distributors, of which the following is a specification.

This invention relates to improvements in ink distributors for printing presses and the like, of the type shown in Patent #1,239,129, dated September 4, 1917.

@ne of the principal objects ofthis invention is to provide a sleeve adapted to lit within the roll and having a duplex thread on its inner surface within a crescentshaped switch carried by the kdistributor roll supporting shaft operating to impart a reciprocating motion to the roll upon the shaft when the roll is rotated. The sleeve is so constructed that the duplex internal thread is complete within the sleeve at one end thereof, the threads being closed at one end of the sleeve. The other end of the sleeve is closed except rthat a portion thereof is cut away to form a small entrance giving access to the threads and permitting the crescent switch to be threadedr into the sleeve. The entrance opening thus formed is closed by a short segment on the inner surface of which isy formed a curved cam surface which serves to complete the thread and to close the entrance to the sleeve.

There are other important objects and advantages of the invention which will appear hereinafter.

In the drawings:

Fig. 1 is a longitudinal sectional viewy of the distributing' roll, the supporting shaft being shown in elevation;

Fig. 2 a detail longitudinal sectional view of one end of theI distributing roll, the threaded sleeve and the co-operating parts being shown in side elevation mounted on the supporting shaft but removed from the distributing roll;

Fig. 3 a view similar to Fig. 2 showing the sleeve and cooperating parts assembled and within the distributing roll;

Fig. 4i a transverse sectional view of the roll supporting shaft showing the crescent switch mounted thereon;

Fig. 5 a transverse sectional view of one arm of the crescent switch;

Fig. 6 an end elevation of the threaded sleeve showing the crescent switch partially Serial No. 694,912.

inserted in the sleeve through the entrance opening, the supporting shaft being shown in transverse sectional view;

F ig. 7 a detail view of the inner side of the closure segment showing a portion of the duplex thread formed thereon;

Fig. 8 a view similar to Fig. 6 showing the closure segment in position on the end of the threaded sleeve;

Fig. '9 a. transverse sectional view of the distributing roll taken on the line 9 9 of Fig. 1;

Fig. 10 a longitudinal sectional view of the threaded sleeve showing the upper half thereof;

Fig. 11 a view similar to Fig. 10 showing the lower half thereof;

Fig. 12 adetail view of a portion of the supporting shaft showing the means for locking the crescent switch to the shaft;

Fig. 13 a. plan view of the parts shown in Fig. 12, the crescent switch being arranged in position to receive the locking pin; and

Fig. 14 a view similar to Fig.- 13 thev crescent switch being shown in its operative position.

Referring to the various parts by numerals, 1 designates the ink distributor roll which is loosely mounted on a sup-porting shaft 2. The shaft 2 may be supported in the press vframe in any suitable manner and is held against rotation by any suitable means. The roll l is provided at one end, the left hand end as viewed in Fig. 1 of the drawings, Vwith a suitable bearing 3 adapted to receive the shaft 2. The bearing 3 is preferably a ring or sleeve of suitable bearing` metal extending into the roll and rigidly and permanently connected thereto. This` bearing' is formed with an oil cavity 4L open to the shaft and designed to deliver oil thereto and with which communication may be had through the passage 5 extending to the outer end surface of the bearing. In this passage is arranged a springr pressed ball valve 6. In the roll 1, near the right hand end, as shown in'Fig. 1, is inserted ay bearing 7, said bearing consisting of a ring of suitable bearing metal forced into the roll and against a slight shoulder 8 and permanentl and rigidly connected to the roll. The bearing 7 is-arranged within the roll a suitable distance from the end thereof to form a chamber 9 extending from the said bearing to the adjacent end of the roll. In said chanihcr is `placed a sleeve 11 having an internal duplex thread 12. Said sleeve tits ssiiirnltT in the ehainher 9 and around the shaft. substantially filling the space between the sha-it and the inner surface ot the roll. The sleeve 11 is slightly reduced in diameter between the tivo end part-s 11a and 11b to form an annular oil spaceV 13 surrounding the sleeve and within the roll. The end 'portions snugly *fithin the roll and accurately center the sleeve therein. In order to secure a uni'inin distribution of Weight ot the sleeve 11 around the shaft, the surnlns metal may he cnt ont exteriorly as indicated at 11C in Figs and 3.

A pair et locking lugs 14 are foi-ined upon the iace of the hearing 7 which is opposed to the sleeve 11 dianietrically yopposite "points, Tie sleeve 11 has a pair ot slots 15 'formed in its inner tace opposed to the hearini;` l designed to reef-Jivev the lngs 111. An interlocking connection is thus provided Which compels the sleeve 1 1 and hearing 7 to rotate together andl vvith the roll. v

The sleeve is apertnred at its ends toreceive the snppor ing shaft which extends longitudinally through it'. The duplex thread is closed at the inner end of the sleeve and the tivo threads are directly connected together so that the crescent switch, which Will he nresently described. when it reaches JU L the inner end oit one thread Will he directed hy the sleeve itself into the other thread in order 'to reverse the direction of longitudinal nioveinentot the roll, The outer end ot the sleeve is closed except for asegrnental entrance opening througl'i whichv access may he had to the threads and through which the crescent-shape switch inav he threaded into the sleeve. This segmental entranceor opening* is i'orined h v cutting a short segment or hloel( ont or the end ot the sleeve; and this opening' is adapted to he closed h v segmental closure hloclc 16. On the inner face of this closure hlock isV orrned a cai'n surface 17 which, when the closure block is in position eoinfgletes the'dnplex thread and completely' closes the sleeve except. of course, for the anertnres, which receive the supporting sh' it'. The closure hloclr is torined at diainetri'callv opposite points on its inner tace fith a pair ot locking lnpjsl. The opposed face o? the sleeve 11 is torined'with a pair of slots 19 adapted-to receive the lugs 13 and hold theclosure liloclt against independent rotative niovenient. lt Will he seen. that the hearing- '7. sleeve 11 and closure hlocl; 16 are all connected to rotateV nfith'the roll 1.

To cause the rollV to reciprocate on the shaft 2,'a` cresc nt sivitchZO is pivotallg7 or rotativelv mounted inv an aperture in the shaft and Within the sleeve 11. Thesvvit'ch is fornied With a stud 21 Whichifits in al transverse apertireiin'the shaft',vr so/that the switch 1s tree to oscillate or rotate on the stud. The tivo arins are tapered toward their tree ends to facilitate travel in the duplex thread as the roll is rotated ahout its snpportii'ig shalt. rlhe inner surfaces oit the arnis ot the switch are out aivav toward their tree ends to torni a slight' space hetiveen the ends ot the erns and the shaft. rlhis is to permit the s h to have a liniited tree movement on its stud; and thesaid inner surfaces are slig'hlil;Y rounded., asshovvn in Fig. 5, to facilitate this inovenient.

rllhe end oi' the roll and the end ot the chainhcr 9 closed hy a hearing ring- Q2, said ring;` being` threaded into the end ot the roll vvith its inner face hearingl against the enter tace or the sleeve and against the outer tace ot the closure lolocl 16. A loc n screw is threaded through the her-.rinr` ring with its inner end engaging the closure block, said screw th rehv lockingw the hearingr ring,l against rotat on and also clslri'nping the closnre hloclr in position against the end of the sleeve. rlhe inner side of the hearing ringn .is cnt ont to torni an oil chamber Q11. A @tissage 25 leads from the outer face of the hearing ring;` into sL oil chainh said passage 25 is arranged a spring `pressed `)all valve 26. Y

id ch ainher 24 through said valved 'passage 5. TheY internal dia-meter of thespiral rihs 'hich torni the duplex thread is slightlj,T

la ',r thathe Vdrain/eter of theV supporting sh 2 so that the said ribs will not l ear on the'r tt and a t space will he to ed thr( hich oil ii om the chainher 24 may readilv iiov-.lv into the slee-veand into the formed therein. To perinit oil to 'dow .iroin the interior or" the sleeve into the oil chainher 13 surrounding the sleeve sinall apertures 27 are tornie, in the sleeve, said apertures leading' into the LgroovesV of the duplex" thread. The outer Vtace ot the vhearing' 7 is cnt ont to 'torni a slight oil chamber Q8 at the inner end ot the threaded sleeve. The ainher 28 is connected hv a groove 29 with an oil chaniher 30 t'orined in the hear ingr 77 said chanihor 30 extending entirelvv around the shaft. A Y y The parts are ssenihled as shown in Figs. 2 and 3. rEhe snr/porting shalt is tirst passed throughV the Vhearii s 3 and 7. The internally threaded sleevey is then passed over the shaft in position to enter the chan'i- The oil inav he forced into the thread. These parts, as thus assembled, are then moved into the chamber' 9. The bearing ring 22 is then passed over the end of the shaft and screwed into the threaded end of the roll. lhe locking screw s3 is then screwed into engagement with the closure block 16, thus locking the bearing ring 22 against rotation and clamping the closure block in position. When the parts are thus all assembled, as illustrated in Fig. the inner end of the sleeve bears against the outer surface of the bearing 7, the lugs are received in the slots 15 and the closure block 17 bears against the outer surface of the sleeve and has its lugs 18 received in the slots 19.

lf desired, that portion of the shaft engaged by the arms of the crescent switch may be cut to present a round or semispherical surface 31 to the inner surface of the switch arms. rlhis construction is illustrated in Figs. 12, 13 and 14. By this means the crescent arms will be in bearing contact with the shaft at all times while at the same time .it may freely follow the duplex thread in the sleeve 11.

To lock the crescent switch to the shaft, to prevent its accidental displacement, a circular recess 32 is formed in the shaft and around the end of the stud of the switch and the walls of this recess are slotted at 33 at diametrically opposite points. Fitted over the end of the stud of the switch and loosely within the recess 32 is a locking collar 34. The stud and the collar are apertured transversely and a pin 35 is passed through said apertures to lock the collar to the stud and thereby secure the switch to the shaft. The apertures in the stud and the collar are so located that when the switch arms are 1n their extreme lateral position and against the shoulder 36 formed on the shaft, said apertures will be in line with the slots 33 and the locking pin 35 may be readily placed in position. When the switch arms are following the duplex thread within the sleeve the pin 35 will be out of line with the slots 33 and the wall of the recess 32 will hold said pin in position. Said pin can only be removed by disconnecting the switch from the threads of the sleeve 11 and then turning it to its extreme position as shown in Fig. 13. It is manifest that while the switch is in operation within the sleeve it cannot become disconnected from the shaft. It is also manifest that this form of fastening device is desirable should the shaft 2 be rota-ted and the switch have a tendency to move outwardly away from the shaft.

Vhat I claim is: I

1. An ink distributor comprising a shaft, a distributing roll slidably mounted on said shaft and formed with a chamber at one end, asleeve fitted within said chamber and provided with an internal duplex thread, the

ends of said sleeve being apertured to receive the said shaft and the inner ends of the duplex thread being closed and a portion of the outer end of said sleeve being cut away to provide an entrance into the sleeve to give access to the internal duplex thread, a crescent switch pivotally mounted on the shaft and adapted to be passed through the en trance into said sleeve to engage the said internal thread, a block to close the entrance to the sleeve and to complete the thread at the outer end of the sleeve, means for loci:- ing the sleeve to the roll to rotate therewith, and means for confining the sleeve within the said chamber.

2. An inlr distributor comprising a shaft, a distributing roll slidably meunted en said shaft and formed with a chamber at one end, a sieeve fitted within said chamber and provided with an internal duplex thread, the ends of said sleeve being apertured to receive the said shaft and a segmental portion of the outer end of said sleeve being cut away to provide an entrance into the sleeve to give access to the internal duplex thread, acrescent switch pivotally mounted on the shaft and adapted to be passed through the entrance into said sleeve to engage the said internal thread, a segmental block to close the entrance to the sleeve and to complete the duplex thread at'the outer end of the sleeve, means for locking the sleeve to the roll to rotate therewith, and means for confining the sleeve within the said chamber.

An ink distributor comprising a shaft, a distributingroll slidably mounted on said shaft, a bearing ring rigidly secured within said roll to form a chamber at one end thereof, a sleeve fitted within said chamber and provided with an internal duplex thread and a segmental portion of the outer end of said sleeve being cut away to give access to the internal duplex thread, an interlocking connection between the bearing ring and the sleeve to compel them to rotate together, a crescent switch pivotally mounted on the shaft and adapted to be passed through the opening in the end of the said sleeve and to engage the said internal thread, a segmental block to close the entrance to the sleeve and to complete the duplex thread at the outer end of the sleeve, said segmental block being formed with a locking-lug adapted to enter a slot in the end of said sleeve, and means fer confining the sleeve and the segmental block in the chamber. i

e. An ink distributor comprising a shaft, a distributing roll slidably mounted on said shaft, a bearing ring rigidly secured within said roll to form a chamber at one end thereof, a sleeve fitted within said chamber and provided with an internal duplex thread and a segmental portion of the cuter end of said sleeve being cut away to give access to the internal duplex thread, means to lock the sleeve to the said roll, a crescent switch pivotally mounted on the shaft and adapted to be passed through the ogening in the end of said sleeve and to engage the said internal thread, a segmental block to close the entrance to the sleeve and 'to complete the duplex thread at the outer en d of the sleeve, said segmental block being formed with a locking' lug` adapted to enter a slot in the end ot the said sleeve, bearing ring` adapted to be screwed into the end of the said roll to contine the sleeve and the segmental bloei; within the said chamber, and means for locking the threaded bearing ring, said locking means being adapted to engage the said segmental block.

5. An ink distributor comprising ashat, a distributing roll mounted thereon and provided with an internal duplex thread, a crescent switch operating in said threadv and formed with a pivot stud extending through said sha-ft7 said shaft being` ont away to .torni a round, or semi-spherical bearing' surface for the inner edge of said crescent switch, a circular socket being formed in said shaft around the tree end of said stud, the walls ot' said socket being slotted at dianietricall7 opposite points, a lockin; collar fitted to the end of said stud and lying' witz-iin said socket, said collar and the stud being aiiertured transversely7 and a locking pin fitted in said apertures, said apertures beings)` so .located that they are out of line with the said slots in thc normal operative `position of the switch but may be brought into line of said slots by rotating the switch to an abnormal position.

ln testimony whereof I hereuno a'flix my signature.

VLLIAM J. RAMSAER. 

